![]() Don’t add too much bicarb to anything, it is 3-4 times stronger than baking powder and too much often gives bakes a green tinge and an unpleasant metallic or soapy flavour. Bicarb can also be activated by an acidic liquid in baking such as buttermilk. What is bicarbonate of soda?īicarbonate of soda or baking soda is another name for sodium bicarbonate, which is alkaline. This requires an acid such as cream of tartar and a liquid activate it. ![]() If it doesn’t, then it will no longer work. You can test it by adding ½ tsp to 2 tbsp warm water. How to test baking powderīaking powder has a shelf life and it stops being reactive after a time. This provides the equivalent of one teaspoon of baking powder. You can buy baking powder more easily than its constituent parts but you can make your own by combining half a teaspoon of cream of tartar and a quarter teaspoon of bicarbonate of soda. It needs liquid (known as single acting), or liquid and heat (double acting) to activate it. Baking powder is made of bicarbonate of soda (baking soda) and cream of tartar and some cornflour.
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